~1. Fifty thousand times repeatedly opening and closing is not damaged, durable;
2. Advanced nest eye technology make the product structure stability and activity freely;
3. Quality accord with the British BS6375 - "09;Singapore SS21 "07 and the Hong Kong housing department standards
4. By moving the position of the adjusting block, can change indoor daylighting and ventilated effect;
5. Double slider design concept, make the casement opening can still around after translation, convenient cleaning and emergency escape;
6. Slide rail adopts a molding professional molding machine, ensure the casement slider in the process of opening and closing movement is smooth;
7. Single fulcrum structure, connecting rod used the distortion of structure design, improve the bearing performance of the product.

8.The material is high quality stainless steel 304.